leachate Articles
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Inhibition kinetics and granular sludge in an ANAMMOX reactor treating mature landfill leachate
The present study reports the inhibition kinetics and granular sludge in an anaerobic ammonium oxidation (ANAMMOX) – up-flow anaerobic sludge blanket reactor fed with diluted mature landfill leachate. The activity of ANAMMOX bacteria was inhibited by addition of mature landfill leachate, but gradually adapted to the leachate. The system achieved efficient nitrogen removal during 65–75 d and ...
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The landfill leachate evapotranspiration in soil?plant system with reed Phragmites australis
Using of the reed – Phragmites australis – is an effective method of landfill leachate disposal. In presented two years' study the effectiveness of leachate evapotranspiration from systems with reed was investigated. Daily evapotranspiration was in the range from 1.01 mm/d to 3.15 mm/d in the first year of research and from 2.68 mm/d to 4.94 mm/d in the second year. The research showed that the ...
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Application of leachate pollution indices for assessment of leachate pollution potential of landfills (a case study of an unlined landfill with lime sludge and fly ash)
Leachates from unlined landfills cause environmental degradation and health hazards due to resultant ground water pollution. Their pollution potential can be measured on a comparative scale using leachate pollution index (LPI). The selection of index involves 18 pollution parameters, their weightages and the sub–index values. The concentrations of pollutants are obtained from toxicity ...
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UF membrane for leachate treatment
Technical details: High operational flux, long lifespan Tubular membrane diameter: 4, 6, 8, 10, 12 and 24 mm MWCO: 10k-250k Dalton Membrane materials: Polyvinylidene fluoride (PVDF), polysulfone (PS) Features: 1. Support layer: Ultrasonic welding / High mechanical stability 2. Filtration layer: PVDF coating?High COD resistance 3. Product Features: High temperature resistance: ...
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Comparative analysis of extended aeration and Fenton process in landfill leachate treatment
This research is undertaken to investigate various operating conditions for minimising sludge disposal and maximising chemical oxygen demand from leachate. With conventional extended aeration process the optimum removal of COD and colour were 36% and 24% respectively. In Fenton process, for optimum pH of 5 and optimum H2O2/Fe2+ molar ratio of 1.3, the dosages of H2O2 and Fe2+ were found 1000 mg/l ...
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Biological nitrate removal using waste-derived extracts as sole carbon source
Waste-derived multicomponent extracts were investigated as carbon source for biological nitrate removal. Aerobic and anaerobic sludge from a municipal wastewater treatment plant and leachate from an anaerobic digester treating food waste were studied. Alkaline-heat treatment was used for sludge solubilisation. More than 90% carbon was recovered at pH 10–11. The extracts contain very high ...
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Treatment of municipal landfill leachate using magnetic porous ceramsite carrier
In this study, porous ceramsite carrier was modified using magnetic material as raw material. The magnetic porous ceramsite carrier was applied to the treatment of municipal landfill leachate. The results showed that the removal efficiency of chemical oxygen demand (COD), NH3-N and Cr6+ in the supernatant were all more than 90% after 30 days with the aeration rate of 3 L/h, the ...
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Effect of organic loading rate on the performance of two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW)
Two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) was carried out: hydrolysis and acidogenesis in a continuous anaerobic hydrolytic leach bed (AHLB) reactor loaded at different rates (Bv = 3.8–7 gVSSL−1d−1) and methanogenesis of leachates, diluted with municipal wastewater in an upflow anaerobic sludge blanket (UASB) reactor at ...
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A case study of coupling upflow anaerobic sludge blanket (UASB) and ANITA™ Mox process to treat high-strength landfill leachate
A pilot study was conducted to study the treatability of high-strength landfill leachate by a combined process including upflow anaerobic sludge blanket (UASB), carbon removal (C-stage) moving bed biofilm reactor (MBBR) and ANITA™ Mox process. The major innovation on this pilot study is the patent-pending process invented by Veolia that integrates the above three unit processes with an ...
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Unpleasant Odors Successfully Removed Using Biological Waste Water Treatment
System designed by Dresden DAS Environmental Expert successfully treats landfill leachate from hazardous waste landfill in Grumbach, Germany DAS Environmental Expert has designed a system for the treatment of landfill leachate that currently treats the wastewaters of the AMAND Umwelttechnik Grumbach managed hazardous waste landfill in Grumbach, Germany. This novel treatment makes it possible ...
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Tubular Ultrafiltration Membrane for Leachate Treatment
Technical details:High operational flux, long lifespan Tubular membrane diameter: 4, 6, 8, 10, 12 and 24 mm MWCO: 10k-250k Dalton Membrane materials: Polyvinylidene fluoride (PVDF), polysulfone (PS)Features:1. Support layer: Ultrasonic welding、High mechanical stability2. Filtration layer: PVDF coating、High COD resistance3. Product Features:High temperature resistance: 70℃High PH resistanceHigh ...
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The BIOZO process – a biofilm system combined with ozonation: occurrence of xenobiotic organic micro-pollutants in and removal of polycyclic aromatic hydrocarbons and nitrogen from landfill leachate
We present an assessment of xenobiotic organic micro-pollutants (XOM) occurrence and removal of polycyclic aromatic hydrocarbons (PAHs) in a novel biofilm system combined with ozonation, the BIOZO concept, treating partly stabilised landfill leachate. A novel, staged moving-bed biofilm reactor (SMBBR) design was implemented in laboratory- and pilot-scale, and the PAHs removal efficiency of ...
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Compost Leachate Pond Bioremediation Case Study - Composting Facility, Northern California
Our client runs a composting facility that receives green waste, food waste and other compostable material from residential and commercial sources, to create rich, black compost Challenge As part of the facility, the compost leachate pond has repeatedly experienced problems with the incoming influent high chemical oxygen demand (COD) and biological oxygen demand (BOD) levels, foul odors and ...
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Inox in a landfill
For collection and transport of leachate, landfill sites are using various types of pumps. Grindex electrical corrosion resistant pumps provide the volume needed where pneumatic pumps and other submersibles pumps fall short. One of the landfills in Illinois has 18 Grindex corrosion resistant pumps in operation and they now have plans to replace all remaining submersibles with Grindex INOX pumps. ...
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Sustainable reuse potential of municipal sewage sludge in south–east Australia
With the aim of reusing municipal sewage sludge, this paper presents the chemical and organic properties of sludge from a major sewage treatment plant in south–eastern Australia. The results show that the concentrations of all OCPs and majority of PAHs were below or close to laboratory detection limits. Concentrations of heavy metals in sludge samples were compared with typical sludge testing ...
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The response of nitrous oxide emissions to different operating conditions in activated sludge wastewater treatment plants in Southeastern Brazil
The continuous measurements of N2O emissions from the aeration tanks of three activated sludge wastewater treatment plants (WWTPs) operated with biological nitrogen removal (BNR) and non-BNR were performed during the different operating conditions of several parameters, such as aeration, dissolved oxygen (DO) profiling and organic shock loading (with landfill leachate). The nitrification ...
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Remediation of MSW landfill leachate by permeable reactive barrier with vegetation
This research was conducted to investigate in situ treatment of leachate by pilot-scale permeable reactive barrier (PRB) with vegetation. Two different types of PRB media, with and without the presence of ferric chloride sludge, for the removal of pollutants were examined. The composite media of PRB comprised a clay and sand mixture of 40:60%w/w (system 1) and a clay, ferric chloride ...
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Achieving nitrogen removal via nitrite pathway from urban landfill leachate using the synergetic inhibition of free ammonia and free nitrous acid on nitrifying bacteria activity
In this study, a biological system consisting of an up-flow anaerobic sludge blanket (UASB) and anoxic–oxic (A/O) reactor was established for the advanced treatment of high ammonium urban landfill leachate. The inhibitory effect of free ammonia (FA) and free nitrous acid (FNA) on the nitrifying bacterial activity was used to achieve stable nitritation in the A/O reactor. The results ...
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Verderflex Peristaltic Industrial Pumps excel in diverse applications
Verderflex Industrial peristaltic pumps are extremely robust pumps, ideal for heavy duty operations on intermittent or continuous duty cycles. They are a simple to use, easy to control, versatile and reliable way to pump liquids. Verderflex Industrial pumps can be used in a broad range of applications: Anaerobic Digestion Sludge Transfer Verderflex pumps were specified due to the high suction ...
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Anaerobic digestion of Organic Fraction of Municipal Solid Waste (OFMSW) in two-phase system
In view of recovering energy resource from the treatment of Organic Fraction of Municipal Solid Waste (OFMSW), anaerobic digestion of OFMSW prior to aerobic composting as post-treatment was considered. This study aimed to determine the operational characteristics and efficiency of a two-phase system composed of a fed-batch hydrolysis reactor (phase I) and a methanogenic Upflow Anaerobic Sludge ...
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